Is it possible to create a limited registration signup form using Google Docs Forms?

Question

I would like to create an event signup form using Google Docs. The user is able to select which session they would like to attend, but I need to somehow limit the number of people that can register for each session.

I can not find a way to do this using the standard form creator GUI, however I think it might be possible to do using Google Apps Script. I would need to be able to customize the form that is loaded to remove sessions that are already full based on a query to the underlying spreadsheet.

Is this possible, or should I look into other Web Form surveys?

Solution

The Google Apps Script Template site has some good templates to help you do something like this. In particular, the Course Registration template sounds like what you should use.

Comments

[Daniel]

Thanks, it's not the exact answer I was looking for but it was enough to get me started. It would be preferable to have a signup for that only showed the options that are still available though.